Physics - MOST IMPORTANT UP PCS Previous Year Questions
Practice real questions from previous year exams of UP PCS.
What happens when some charge is placed on a soap bubble?
The phenomenon used in optical fibre for transmission of light energy is
A liquid remains hot or cold for a long time in thermos flask because there is no loss or gain of heat by
Match List-I with List-II and select the correct answer using the codes given below the lists : List-I (Metal) A. Sodium B. Mercury C. Silver D. Lead List-II (Property) 1. Good conductor of electricity 2. Liquid at room temperature 3. Poor conductor of heat 4. Can be easily cut with knife
Which of the following types of glass can cut off ultraviolet rays?
With reference to the electric potential, which of the following statement is/are correct?
- It is a scalar quantity.
- It is a vector quantity.
Select the correct answer using the codes given below.
Codes:
Diffusion of light in the atmosphere takes place due to
Which of the following particles has zero charge?
With reference to the radioactivity, which of the following statements is/are correct?
- Radioactivity is a nuclear property.
- Hydrogen bomb is prepared on the principle of nuclear fission.
Select the correct answer using the codes given below.
Codes:
Thermodynamically the most stable form of carbon is
Which of the following is NOT a green house gas?
In the context of permissible noise level match List-I with List-II. List-I (Area): A. Residential area, B. Silent zone, C. Industrial area, D. Commercial area. List-II (Permissible Noise Level): 1. 50 db, 2. 55 db, 3. 65 db, 4. 70 db
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R). Assertion (A): Agra and Darjeeling are located on the same latitude but temperature of January in Agra is 16° Centigrade whereas it is only 4° Centigrade in Darjeeling. Reason (R) : Temperature decreases with height and due to thin air, places in the mountains are cooler than places in the plains.
In which of the following types of heat engines carburetor is used?
Solar energy is converted into electric energy through
Which one of the following pairs of Quantity and S.I. Unit is NOT correctly matched?
The earth atmosphere is mainly heated by which one of the following?
Non-conventional energy sources are those energy sources, that are-
Shivanasamudra and Kalpakkamam are respectively important for
A bus covers the first half of a certain distance with speed v₁ and the second half with a speed v₂. The average speed during the whole journey is :